/**
* processes SimpleXMLIterator objects recursively
*
* @access protected
* @param object $iterator
* @return array xml converted to array
*/
private static function _iteratorToArray($iterator)
{
$xmlArray = array();
$value = null;
// rewind the iterator and check if the position is valid
// if not, return the string it contains
$iterator->rewind();
if (!$iterator->valid()) {
return self::_typecastXmlValue($iterator);
}
for ($iterator->rewind(); $iterator->valid(); $iterator->next()) {
$tmpArray = null;
$value = null;
// get the attribute type string for use in conditions below
$attributeType = $iterator->attributes()->type;
// extract the parent element via xpath query
$parentElement = $iterator->xpath($iterator->key() . '/..');
if ($parentElement[0] instanceof SimpleXMLIterator) {
$parentElement = $parentElement[0];
$parentKey = Braintree_Util::delimiterToCamelCase($parentElement->getName());
} else {
$parentElement = null;
}
if ($parentKey == "customFields") {
$key = Braintree_Util::delimiterToUnderscore($iterator->key());
} else {
$key = Braintree_Util::delimiterToCamelCase($iterator->key());
}
// process children recursively
if ($iterator->hasChildren()) {
// return the child elements
$value = self::_iteratorToArray($iterator->current());
// if the element is an array type,
// use numeric keys to allow multiple values
if ($attributeType != 'array') {
$tmpArray[$key] = $value;
}
} else {
// cast values according to attributes
$tmpArray[$key] = self::_typecastXmlValue($iterator->current());
}
// set the output string
$output = isset($value) ? $value : $tmpArray[$key];
// determine if there are multiple tags of this name at the same level
if (isset($parentElement) && $parentElement->attributes()->type == 'collection' && $iterator->hasChildren()) {
$xmlArray[$key][] = $output;
continue;
}
// if the element was an array type, output to a numbered key
// otherwise, use the element name
if ($attributeType == 'array') {
$xmlArray[] = $output;
} else {
$xmlArray[$key] = $output;
}
}
return $xmlArray;
}
function testDelimeterToUnderscore()
{
$this->assertEquals("a_b_c", Braintree_Util::delimiterToUnderscore("a-b-c"));
}
